view ghosts on round end (#11680)

* view ghosts on round end

* now make it good

* it toggles now i hope

Content.Server/Administration/Commands/ShowGhostsCommand.cs

@@ -0,0 +1,38 @@
+using Content.Server.Ghost;
+using Content.Server.Revenant.EntitySystems;
+using Content.Shared.Administration;
+using Robust.Shared.Console;
+
+namespace Content.Server.Administration.Commands
+{
+    [AdminCommand(AdminFlags.Admin)]
+    public sealed class ShowGhostsCommand : IConsoleCommand
+    {
+        [Dependency] private readonly IEntityManager _entities = default!;
+
+        public string Command => "showghosts";
+        public string Description => "makes all of the currently present ghosts visible. Cannot be reversed.";
+        public string Help => "showghosts <visible>";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            if (args.Length != 1)
+            {
+                shell.WriteError(Loc.GetString("shell-wrong-arguments-number"));
+                return;
+            }
+
+            if (!bool.TryParse(args[0], out var visible))
+            {
+                shell.WriteError(Loc.GetString("shell-invalid-bool"));
+                return;
+            }
+
+            var ghostSys = _entities.EntitySysManager.GetEntitySystem<GhostSystem>();
+            var revSys = _entities.EntitySysManager.GetEntitySystem<RevenantSystem>();
+
+            ghostSys.MakeVisible(visible);
+            revSys.MakeVisible(visible);
+        }
+    }
+}